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International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056

Volume: 11 Issue: 04 | Apr 2024 www.irjet.net p-ISSN: 2395-0072

Laser Beam Alarm System with Automated Door Lock System

Sarita Chauhan1 , Charvi shrivastava2 , Yashpal Singh Chundawat3

1 Asst. Professor, Dept. of Electronics and Communication Engineering, MLVTEC, Bhilwara, Rajasthan, India

2 B.Tech, Dept. of Electronics and Communication Engineering, MLVTEC, Bhilwara, Rajasthan, India

3 B.Tech, Dept. of Electronics and Communication Engineering, MLVTEC, Bhilwara, Rajasthan, India ***

Abstract - This paper introduces a security system that combines a Laser Beam Alarm with an Automatic Door Lock System to enhance security in residential and commercial environments. Leveraging the integration of cutting-edge technology, this research explores the deployment of laser sensors and automatic locking mechanisms to detect and prevent unauthorized entries. This enables control and ensuring a comprehensive and responsive security solution. Extensive testing has proven the system's efficiency in intrusion detection by instantaneously activating alarms and door locks upon any security breach. This study details the design, functionality, and testing outcomes of the system, underscoring its potential to redefine security measures for large-scale protection against unauthorized access. By merging technology with traditional security tactics, this Laser Beam Alarm System with Automated Door Lock System presents an innovative approach to tackling modern security challenges.

Key Words: RFID, laser, LDR, Security System, Arduino Nano, Solenoid Door lock

1.INTRODUCTION

In today's world, the need for effective security measures has never been more critical. With technological advancements, those with malicious intent have found new ways to breach security, posing challenges to traditional security systems. Consequently, there is an urgent need for innovative solutions that keep pace with these advancements. Individuals and organizations alike are on a continuous search for better and more reliable waystoprotecttheirpremises.

To address this need, we have developed a new security system named the Laser Beam Alarm System with Automated Door Lock System. This system utilizes laser technology to safeguard areas against unauthorized access. The principle behind this system is straightforward:ifanunauthorizedindividualattemptsto enter the protected area, the laser detects this activity. Immediately,analarmistriggeredtoalertoftheintrusion, and doors automatically lock to prevent entry. Lasers provide a precise and reliable method for detecting intrusions, significantly reducing the likelihood of false alarms a common issue with other types of security systems. Moreover, we designed the system to be user-

friendly, ensuring ease of installation and use. This approachmakesadvancedsecurityaccessibletoabroader audience, providing peace of mind to home and business ownersalike.

2. LITERATURE SURVEY

A few reviews were done in the past as part of research paperson:

The first system involves a Home Automation Security system with Laser Lights Alarm designed for large spaces like factories to improve security. It utilizes Raspberry Pi controllers, laser beam modules, PIR sensors, and alert lights to detect intruders, sending alerts to mobile users andwebpages.Thesystemsuccessfullysentandreceived messagesandrequestsduringtesting.

Thesecondsystemisawirelesssecuritysystemcontrolled by a wireless remote or touch-tone phone, featuring infrared motion sensors and an alarm unit triggered by detecting human body heat. It uses two types of laser beams: a green visible beam and an invisible infrared beamtoenhancesecuritymeasures.

ThethirdsystemintroducesaLASER-basedsmartsecurity systemfocusingondetectingburglarsusingimperceptible laser rays at entry points like doors and windows. Once the laser beam is crossed, the alarm is triggered continuously until manuallyturned off. This cost-effective systemsendsaphotooftheintrudertoaregisteredemail addressforverification,utilizingcomponentslikeArduino, LDRmodule,WIFImodule,andabuzzerforalerts.

3.WORKING

When the system is activated, the laser diode emits a continuous, invisible laser beam across the entrance or area to be monitored. This beam is aimed directly at an LDR (Light Dependent Resistor) sensor placed on the opposite side. The laser diode and LDR sensor are crucial components;thediodeservesasthesourceofmonitoring light, while the LDR sensor acts as the receiver, changing itsresistancebasedonthelightintensityitdetects.

Volume: 11 Issue: 04 | Apr 2024 www.irjet.net

Fig -1:LaserAlarmSystem

Under normal conditions, with the laser beam uninterrupted, the LDR sensor receives a constant light signal, maintaining a low resistance state. This steady signalindicatestothesystem'scontrolunit,managedbya Nanomicrocontroller,thattheareaissecureandfreefrom intrusion.

Fig -2:AutomaticDoorLockSystem

Thecriticalmomentofoperationoccurswhenanintruder interrupts the laser beam. This interruption blocks the beam from reaching the LDR sensor, causing a sudden changeinitslight reception.TheLDR sensor responds by altering its resistance, signaling a disruption in the securedarea.

This signal is immediately processed by a Nano microcontroller, the system's brain, programmed to recognize the change in resistance as an indicator of a potential security breach. Upon detection, the microcontroller activates a 5v Buzzer. This buzzer acts as an audible alarm, alerting anyone nearby to the potential intrusion and often deterring the intruder from proceedingfurther.

Through thissequence ofactions starting fromthelaser diode's surveillance, the LDR sensor's detection, to the immediate locking of the door and activation of an alarm the Laser Beam Alarm System with Automated Door Lock System provides a formidable line of defense against unauthorized entries. This setup not only deters potential intruders but also ensures a rapid response to any security breach, thereby significantly enhancing the safetyandsecurityoftheprotectedarea.

4.CIRCUIT DESIGN

The Arduino Nano microcontroller serves as the system's main hub, receiving inputs from sensors and RFID authentication to control operations. The 18650 battery serves as the power source, regulated by the TP4056 module to provide a stable 5V output. The RFID reader communicateswiththeNanoforaccesscontrol,activating the solenoid lock through the relay module when valid authenticationisdetected.

Fig -4: ConnectionsinLaserAlarmSystem

Fig –3: Laser Beam Alarm with an Automatic Door Lock System

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056

Volume: 11 Issue: 04 | Apr 2024 www.irjet.net p-ISSN: 2395-0072

A laser alarm is set up using a laser diode and an LDR sensor.Interruptionofthelaserbeamtriggersaresistance change in the LDR, signaling potential intrusion. The solenoid lock is operated by a relay module controlled by the Nano. An LCD display, augmented by the I2C module for enhanced communication, provides system status updates. Buzzer and LEDs connected to the microcontrolleroffervisualandaudiblenotifications.

5.SOFTWARE DESCRIPTION

TheArduinoIDEisafreesoftwarethatletsyoucreateand transfer programsto Arduino boardslike the Nano.It has aneasy-to-useinterfacewithacodeeditor,achatwindow, buttons, menus, and options for selecting the board and serial port. It can handle C and C++, comes with a lot of built-in features, and has a library of user-made libraries. The Serial Monitor lets you troubleshoot and talk to the board in real time. It works on Windows, macOS, and Linux.

6. CONCLUSIONS

TheLaserBeamAlarmSystemwithAutomatedDoorLock System provides an effective and accessible security solutionatalowcost.Thissystemdemocratizesadvanced lasertechnology,makingitaffordableandeasytousefora wide range of users, from homeowners to jewelry shops, banks,andeducationalinstitutionslookingtosecureexam papers. Its straightforward design allows for quick installation and operation, instantly detecting unauthorized entries with an alarm and automatic door locks. By offering this high-tech security in a budgetfriendly package, the system ensures that advanced protection is available to all, enhancing safety across diverse environments without the hefty expense typically associatedwithsuchtechnology.

7.REFERENCES

1. Arifin, M., Kassim, M., Mahmud, A., & Suliman, S. (2019). Automation Security System with Laser Lights Alarm on Web Pages and Mobile Apps. 2019 IEEE 9th Symposium on Computer Applications & Industrial Electronics (ISCAIE), 287-292. https://doi.org/10.1109/ISCAIE.2019.8743998

2. Dutta, D. (2023). Laser security system. International Research Journal of Modernization in Engineering Technology and Science. https://doi.org/10.56726/irjmets44704

3. Goel,V.,Varshney,R., Parashar,S.,Ali,S.,&Singh, P. (2022). Laser Based Smart Security Apparatus UsingArduino.International Journal forResearch in Applied Science and Engineering Technology. https://doi.org/10.22214/ijraset.2022.40986.

4. Kamble, S., Shendage, C., Jadhav, S., Raut, A., & Kawade,P.(2023).LaserSecuritywithAutomatic Gateway System. International Journal of Advanced Research in Science, Communication and Technology. https://doi.org/10.48175/ijarsct-12023

8.BIOGRAPHIES

Smt. Sarita Chauhan is working at MLVTEC, Bhilwara in the capacity of Assistant Professor in ECE Department and has more than 20 years of experience. She has more than26publicationsinInternational Journals and is the author of two booksunderRTU. Her fields of interests are NT, VLSI, VHDL, ANFIS, NN, AE, EDA, Image Processingetc.

Charvi Shrivastava, pursuing Btech in Electronics and Communication engineering, MLVTEC, Bhilwara, Rajasthan. Completed Training from DRDO, Jodhpur in LT spice and PLANET4RENEWABLEinSolarCell.

Fig -5:ConnectionsinDoorLockSystem

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056

Volume: 11 Issue: 04 | Apr 2024 www.irjet.net p-ISSN: 2395-0072

Yashpal Singh Chundawat, pursuing b.tech in Electronics and Communication engineering MLVTEC, Bhilwara Rajasthan Completed training from BSNL, Bhilwara in GSM and PLANET4RENEWABLEinSolarcell